Hi Again.
> Iptables -nL
>
> Show?
Here is the complete output (there are a lot of other rules active on
that machine):
Chain INPUT (policy DROP)
target prot opt source destination
ACCEPT all -- 0.0.0.0/0 0.0.0.0/0
my_drop all -- 10.0.0.0/8 0.0.0.0/0
my_drop all -- 172.16.0.0/12 0.0.0.0/0
my_drop all -- 192.168.0.0/16 0.0.0.0/0
ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state
RELATED,ESTABLISHED
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:22 state NEW
my_drop tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x17/0x02
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:25 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:110 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:22 state NEW
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp
spts:1024:65535 dpt:53 state NEW
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp
spts:1024:65535 dpt:53 state NEW
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp
spts:1024:65535 dpt:37 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:3128 state NEW
ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 icmp type 0
ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 icmp type 8
ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 icmp type 8
my_drop all -- 0.0.0.0/0 0.0.0.0/0
Chain FORWARD (policy DROP)
target prot opt source destination
ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state
RELATED,ESTABLISHED
ACCEPT tcp -- 0.0.0.0/0 172.28.0.16 tcp dpt:1249
ACCEPT tcp -- 0.0.0.0/0 192.168.171.253 tcp dpt:25
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp
spts:1024:65535 dpt:1194 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:1723 state NEW
ACCEPT 47 -- 0.0.0.0/0 0.0.0.0/0 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:25 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:443 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:25 state NEW
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp
spts:1024:65535 dpt:6277 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:2703 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:22 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:446 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpts:20:21 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:80 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:443 state NEW
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp
spts:1024:65535 dpt:53 state NEW
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp
spts:1024:65535 dpt:37 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:1494 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:8000 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpts:1000:1004 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:6667 state NEW
ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:3000 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:866 state NEW
ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 icmp type 0
ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 icmp type 8
my_drop all -- 0.0.0.0/0 0.0.0.0/0
Chain OUTPUT (policy DROP)
target prot opt source destination
ACCEPT all -- 0.0.0.0/0 0.0.0.0/0
ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state
RELATED,ESTABLISHED
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:25 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:25 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:25 state NEW
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp
spts:1024:65535 dpt:6277 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:2703 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:110 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:22 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:22 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:22 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:446 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpts:20:21 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:80 state NEW
ACCEPT tcp -- 0.0.0.0/0 192.168.100.4 tcp
spts:1024:65535 dpt:80 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:443 state NEW
ACCEPT tcp -- 0.0.0.0/0 192.168.100.4 tcp
spts:1024:65535 dpt:443 state NEW
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp
dpt:53 state NEW
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp
spts:1024:65535 dpt:53 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:53 state NEW
ACCEPT udp -- 0.0.0.0/0 134.130.4.17 udp
spts:1024:65535 dpt:37 state NEW
ACCEPT udp -- 0.0.0.0/0 130.149.17.21 udp
spts:1024:65535 dpt:37 state NEW
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp
dpt:123 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:43 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
spts:1024:65535 dpt:113 state NEW
ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 icmp type 8
ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 icmp type 0
ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 icmp type 0
my_drop all -- 0.0.0.0/0 0.0.0.0/0
Chain my_drop (7 references)
target prot opt source destination
REJECT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
dpts:4661:4662 reject-with icmp-port-unreachable
REJECT udp -- 0.0.0.0/0 0.0.0.0/0 udp
dpt:4665 reject-with icmp-port-unreachable
REJECT udp -- 0.0.0.0/0 0.0.0.0/0 udp
dpt:1214 reject-with icmp-port-unreachable
REJECT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
dpts:137:139 reject-with icmp-port-unreachable
REJECT udp -- 0.0.0.0/0 0.0.0.0/0 udp
dpts:137:139 reject-with icmp-port-unreachable
LOG tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
flags:0x17/0x02 limit: avg 10/min burst 5 LOG flags 0 level 6 prefix
`DROP-TCP-SYN '
REJECT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp
flags:0x17/0x02 reject-with tcp-reset
DROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x17/0x02
LOG tcp -- 0.0.0.0/0 0.0.0.0/0 limit:
avg 10/min burst 5 LOG flags 0 level 6 prefix `DROP-TCP '
REJECT tcp -- 0.0.0.0/0 0.0.0.0/0
reject-with tcp-reset
DROP tcp -- 0.0.0.0/0 0.0.0.0/0
LOG udp -- 0.0.0.0/0 0.0.0.0/0 limit:
avg 10/min burst 5 LOG flags 0 level 6 prefix `DROP-UDP '
REJECT udp -- 0.0.0.0/0 0.0.0.0/0
reject-with icmp-port-unreachable
DROP udp -- 0.0.0.0/0 0.0.0.0/0
LOG icmp -- 0.0.0.0/0 0.0.0.0/0 LOG flags
0 level 6 prefix `DROP-ICMP '
DROP icmp -- 0.0.0.0/0 0.0.0.0/0
LOG all -- 0.0.0.0/0 0.0.0.0/0 limit:
avg 10/min burst 5 LOG flags 0 level 6 prefix `DROP-PROTO-ETC '
REJECT all -- 0.0.0.0/0 0.0.0.0/0
reject-with icmp-proto-unreachable
DROP all -- 0.0.0.0/0 0.0.0.0/0
Best Regards
Marcus
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